Fisher GX Control Valves

Transcription

1 Fisher GX Control Valves

2 Fisher GX Control Valves Innovation. Technology. Reliability. Emerson engineers started with a clean slate in developing Fisher GX control valves. Their goal was to bring unmatched innovation, technology and reliability to control valve ownership. GX control valves are the result. They provide reliable operation over a wide range of applications and come in a variety of sizes and materials. Designed to meet your needs, digital GX control valves with integrated FIELDVUE DVC2000 instruments feature non-contact, linkage-less technology. DVC2000 instruments give local indication of valve travel position and pressure status in one of 7 languages. No other control valves offer the innovation, technology and reliability of digital Fisher GX valves. Wide Range of Application The GX product line lets you meet a wide range of flow and pipeline sizing requirements. A 3-Way construction is available, which is perfectly suited for accurate temperature control. The engineered passages within the GX valve body provide optimal capacity and create a stable flow pattern for smooth operation in every valve size. Actuator sizing and selection is determined automatically by the valve body configuration. No extra engineering is required. The GX actuator controls up to a 51.7 bar (750 psig) pressure drop. Its multi-spring design is fieldreversible from spring-open to spring-close action. A carefully selected lineup of valve body and trim materials means you can apply the GX to a wide range of service situations. Carbon and stainless steels are GX standards along with a choice of several alloys for more corrosive applications. Metal-to-metal seating is standard, with options including PTFE soft seating for Class VI shutoff and hardened trim with a Stellite overlay for erosive applications. You can use the GX for either throttling or on-off control, with or without a positioner. Digital and analog positioners can be specified, as well as auxiliary solenoids, limit switches and other accessories. The GX is compatible with the NAMUR (IEC ) mounting standard.

3 You told us what you wanted Integrated Digital Technology A typical GX configuration features the FIELDVUE DVC2000 digital valve controller. The industryleading FIELDVUE digital valve controller brings easier control, enhanced performance and unduplicated maintenance advantages to control valve applications. In fact, FIELDVUE instruments provide much more than traditional valve positioning. They are core components of Emerson s PlantWeb digital plant architecture. As such, they present critical operating information about themselves and the process to enable plant personnel to make better-informed decisions. Easy to Maintain The GX is robust and compact. Its design architecture features common parts across all sizes, which reduces spare parts inventory requirements and associated costs. Actuator removal is quick and easy. The actuator can be easily field reversed to a fail-open or fail-closed configuration. The digital GX with integrated DVC2000 features linkage-less, non-contact position feedback, which eliminates mechanical wear between the valve and instrument. The digital GX features an integral interface to eliminate tubing for most applications, further simplifying maintenance issues found in most control valve assemblies today. The one-piece packing follower threads into the bonnet to simplify installation and adjustment of the packing system. The system employs live-loading to compensate for normal wear. The PlantWeb digital plant architecture offers proven improvements in system availability, reduced variability, increased throughput and enhanced product quality.

4 Certified Emission Control Packing System The GX, with its live-loaded emission control packing system, gives you a single valve that you can use effectively in a wide variety of applications. It meets elevated temperature requirements, up to 371 C (700 F), and can handle rigorous mechanical and thermal cycles. Live-loaded emission control packing is standard in the GX. Choose either PTFE V-ring or graphite ULF (ultra low friction). The GX with live-loaded graphite ULF packing is available for all sizes and is standard on the HT (high temperature) construction. It is compliant with both the TA-Luft and ISO (DIS) class B emission control packing standards. Compliance to these standards was tested and certified by TÜV (TA-Luft) and Cetim (ISO ) third party agencies. Contact your local sales office for copies of your GX emission control packing system third party certifications. Bellows Extension Bonnet The GX bellows extension bonnet provides reliable and tight stem sealing for those applications where emissions escaping to the environment cannot be tolerated. The GX bellows is available in SST ( / 316Ti) or N10276 and covers a full range of valve sizes from DN 15 through DN 100 (NPS ½ through 4). The GX bellows system has been designed for 100,000 full-travel cycles at maximum allowable pressure and ambient temperature (20 C [68 F]). The mechanically-formed metal bellows provides high operating reliability and extended cycle life. Tight Stem Sealing The GX bellows design incorporates a rugged doubleor triple-wall construction for added security. Each bellows has been tested with helium before it leaves the factory. The GX emission control packing system provides low friction and precise guiding for optimized control valve performance throughout the life cycle of the control valve. It maintains superior stem seals to reduce fugitive emissions. The innovative stem connection technology within the GX valve ensures stem and packing alignment for superior sealing and extended service life.

5 Dramatic Improvement in Temperature Controllability: GX 3-Way With its unique flow cavity and integrated FIELDVUE digital valve controller technology, the GX 3-Way valve provides consistent temperature control for a wide range of operations, including heat exchangers and lubricating skids. Its high capacity design and precise linear characteristics allow for accurate temperature control. The GX 3-Way valve is multi-faceted in its ability to cover both flow mixing (converging) and flow splitting (diverging) applications with no extra parts needed. Unlike other 3-way valves, it features both side-port and bottom-port common trim. The high-temperature, side-port common trim utilizes an unbalanced plug design, a stem extension, a yoke extension, and includes live-loaded ULF graphite packing and a hard-faced seat ring. The GX 3-Way s compact size matches easily to your piping. The integrated FIELDVUE digital valve controller mounting as well as GX parts commonality contribute to a lower parts count for reduced inventory and maintenance costs. The seat ring and one-piece plug and stem provide easy maintenance. As with the GX, the GX 3-Way requires no actuator sizing once the valve body construction is selected. The GX actuator platform is common across all GX valves, both 2-Way and 3-Way. Compact GX 3-Way Valve The Fisher GX 3-Way is a state-of-the-art control valve and actuator system, designed to accurately control water, oils, steam, and other industrial fluids. The robust GX 3-Way valve package is perfectly suited to address the space limitations of the OEM industry.

7 Fisher Specification Manager Software This software contains complete product documentation, including technical specifications, pressure and temperature capabilities, dimensions, details on construction options, part numbers and recommended spares plus information on how to install, operate and maintain the various GX actuator controller combinations. Easy to Configure Valve selection is made easy with Fisher Specification Manager software. Available to download from the software offers a powerful set of tools for producing an ISA specification sheet faster. The Next Step To learn more about how Fisher GX control valves bring unmatched innovation, technology and reliability to control valve ownership, ask your Emerson sales contact for the free product bulletins 51.1:GX and 51.1:GX 3-Way. To acquire the knowledge to benefit from GX control valves, contact Emerson Educational Services. Visit for more information.

8 This mark indicates a core component of the PlantWeb digital plant architecture. Fisher Controls International LLC 2008, 2011 All Rights Reserved. Fisher, FIELDVUE, PlantWeb, and Cavitrol are marks owned by one of the companies in the Emerson Process Management business division of Emerson Electric Co. Emerson Process Management, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their respective owners. Emerson Process Management Marshalltown, Iowa USA Sorocaba, Brazil Chatham, Kent ME4 4QZ UK Dubai, United Arab Emirates Singapore Singapore The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such products at any time without notice. Neither Emerson, Emerson Process Management, nor any of their affiliated entities assumes responsibility for the selection, use, or maintenance of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user. D351047X012 / H: / Feb11

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